Samuel n



@auch faire strut @ffice SAMUEL N.v lBATCHELDER, OF PRAIRIE DU CHI-EN,WISCONSIN; Letters Patent No. 71,953, dated December 10, 1867.

IMPROVEMENT IN rar-Sonates AND BnvNLs. 4

TO ALINWHOM 'IT- MAY CONCERN:

it known that'I, SAMUEL BATCHNLDER, ot' PrairieduChien, in the county ofCrawford, and State of Wisconsin, have lnvented a new and useful Improvement in Combined Try-Square and Bevel; and Ide lhereby declarethat the following is a. full, clear, and-exact description` thereof,which till enable those skilled 1n VJthe art to make and use the same,reference being had to the accompanying drawings, forming part of thisspecification.

This invention relates to a neviY and useful combination of tw'o tools,which are both indispensable 'to the joiner or worker in Nvood, as wellas in iron or other metals; and it consists in attaohingthe blade offatty-square to the stock in such a manner that it can be set andfastened at any desired angle by operating a hook-slide and set-screws,as I n rill proceed to describe. v l

"Figure 1 represents a section of the tool through the line z a: ofig.2, showing a side vieyv fand the arrange# ments o`- tbe parts ofwhich it is composed.

Figure 2 is a top or end View of the same, showing the scale or lineswhich indicate the different anglesrto which the blade may be set. f I

Similar letters of reference indicate corresponding parts. y

A is 4the stock, and B is theblade. Theblade is pivoted `to the stock by,the thumb-screw C. The stock is separated through its width from thetop to the point a, so thatr'theblade can drop to"forn 1 an acute anglewith the stock when desired. D is the hook-slide, which is4 operatedand' fastened in place'- by a set-screw, E, mrthe back of the tool. Thethumb-screw passes through the slide with a screw-thread, and draws theslide against the back plate c, which plate has a slot througbit -inwhich the srewlis moved.- The back en d of the blade extends back andforms a hook, as seen in the drawing jat e. 1F Visa spiral springwhich'is placed inside the face-plate d, and which is attached tothestock atf and to the blade at g. The tendency of thisspring is to drawdown-the blade when the thumb-screws C and E are loosened. n` the top ofthe stock there is a scale of degrees, as avguide in setting the bladeto anyl desired angle. i

As indieated'in the drawing, the corner of the blade h stands at ninetydegrees. 'When in this position the blade stands at right angles withthe stock, and it is then a try-square.` The blade need'notnecessarilybe` fastened in this position; and unimportant feature is that theoperator is enabled to square his work by standing erect and noticingthe position of the corner of the blade.' It' the corner stands atninety. degrees when the square tits the work the work, is square or at'right angles. iThis device obviates the necessity of stooping, and alsothe'inconvenielice occasioned by a bad light.

v To set the plate at any desired angle, either acute or obtuse, it isonly necessary to loosen the screws and.

adjust the sliding hook to the blade, then tighten the screws as before.The advantages of this arrangement are many, and must be vobvious tosill. l

What I claim, and desire to secure'by Letters Patent, is l 1. The bladeB pivoted within the stock A, and provided with a hooked projection, e,by means of `which, and the hook-slide D, the blade B may be set andheld at anydesired angle, substantially as described and for the purposespecified.

2. I clairn the hook-slide D with the thumb-screw E, arranged andoperating substantially as shownand described, for the purposes setforth.v 4

3. Iclaim the spiral spring F, in combination with a combined trysquareand bevel, substantially as described.

i .'-SA1\IUEL N. B'AronELpEn.'

Witnesses S. SfrILns, JAC. RAFIAUF.'

